Soldering-iron heater



J. S. HULL. Soldering-Iron Heater.

No. 226,753. Patented April 20,1880.

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JOHN S. HULL, OF BALTIMORE, MARYLAND.

SOLDERING-IRON HEATER.

SPECIFICATION forming part of Letters Patent No. 226,753, dated April 20, 1880.

Application filed February 10, 1880.

To all whom it may concern:

Be it known that I, JOHN S. HULL, of Bad timore city, State of Maryland, have invented certain new and useful Improvements in Soldering-Iron Heaters; and I hereby declare the same to be fully, clearly, and exactly described as follows, reference being had to the accompanying drawings, in which- Figure l is a side elevation of the device; Fig.2, a central longitudinal sectional view of the burner and its immediate attachments; Fig. 3, a similar view of the end of the airchamber; Fig. 4, a similar view of the end of the gasoline-chamber; Fig. 5, a sectional view of an attachment whereby the iron is held in the axis of the flame.

My invention has reference to that class of soldering-irons in which the heat is maintained by means of a jet of flame impinging upon the iron, and to thatclass of heaters in whicha jet of gasoline or equivalent hydrocarbon or other inflammable fluid is volatilized by passage through a heated duct and is burned within a perforated tube, the admixture of gas with air serving to produce a colorless or Bunsen flame, which latter serves to heat the gasoline-duct and maintain the volatilization of the hydrocarbon.

My invention has for its object to produce a heater and iron of the class named so combined as to furnish a convenient and portable device for soldering purposes, andto serve, as occasion may require, as a simple heater for brazing or other purposes requiring a nonlumiuous and highly-heated jet of flame.

The points of novelty wherein the device constituting the subject of my present invention differs from others of its class are made the subjects of the claims.

In the accompanying drawings, A is a cylinder, having a threaded opening at a, and provided with one or more pipes, a a, leading into a second cylinder, 0.

In the end of the cylinder A is a gland, B, suitably packed, and through it is screwed a rod, b, terminating in a conical or sharpened point, a, that is seated, as the rod is screwed forward, in a tapering nozzle, 0, as shown.

The cylinder 0 is provided with a screw-cap, c, and at its forward end is a well, 0, whose coverisperforatedatc. (SeeFig.4.) Through other highly-volatile hydrocarbon.

a suitably-packed gland, d, in the front upper portion of the cylinder, and vertically over the well 0, is screwed a tube, D, that passes nearly to the bottom of .the well. This tube also passes through an extension, (7/, on the end of the upper cylinder, A, and opens into. a transverse tube, E, which terminates at its forward end in a conical nozzle, m. (See Fig. Axially through the tube passes a rod or needle, 0, having a sharpened tip, I, that seats in the nozzle we when the rod is screwed forward through the packed gland e.

F is a milled head for adjusting the screw-rod e. A casting,f of copper, is brazed or screwed on the tube '6, and to it is attached the burnertube G, having a series of perforations,ff, as shown.

Into the extension d is screwed a rod, I-I, carrying at its forward end a tubular holder, I, for the iron J, which latter is secured by a set-screw, 'i, and projects at its upper end past the axis of the burner G.

K is a holder, to be, used when it is desired to maintain the iron in the axis of the jet.- In this case the iron J has a tapering rear end, 7

as shown, so as not to offer an abrupt face to the flame, and is secured in the holder by means of a set-screw, k.

Such is, in general terms, a description of the device.

In operation the screw-cap c is removed and the cylinder 0 is filled with gasoline or The rod 1) is next retracted, so as to open the nozzle 0, and a small condensing air-pump is screwed in the opening a, and air is forced into the cylinder A until the desired tension is attained, when the rod 1) is screwed forward, closing the orifice at 0, and the air-pump is removed. The casting f is next heated over a lamp or burner, so as to volatilize the hydrocarbon as it passes through the tube. Upon retracting the rod 0 the nozzle m is opened and the gasoline is driven by the compressed air up and through the tubes D and E and out at the nozzle m. In passing through the casting f, however, it is converted into a gas, and on being ignited burns in the tube Gr. Mixing with air which enters through the openings ff, the gas burns with a colorless or non-luminous flame, its carbon, as well as its hydrogen, be

' want.

in g oxidized, as in the ordinary Bunsen burner, and an intense heat is thereby produced. As shown in Fig. 1, the jet of flame is directed upon the upper end of the soldering-tool J; but, inasmuch as the burner and its attachments (the tubes E and D) turn freely in the projection d and gland (Z, the flame may be directed to one side or the other, as may be desired.

Referring now to certain details of construction which constitute important features of my invention, it may be remarked the casting f, of copper or other metal having high conductin g power, serves to volatilize the jet of gasoline, and by reason of the juxtaposition of the piece f with the burner-tube Gr its heat is maintained.

The rod H is threaded into the projection d at h, whereby the soldering-tool is adjustable to or from the jet, as may be desired.

Inasmuch as it is sometimes desirable, as in soldering vertical seams, to have the solderin giron lie parallel with the axis of the handle, I make use of the device shown in Fig. 5. In this case, as hereinbefore stated, the iron is made tapering at the rear end so as not to offer an abrupt barrier to the jet of flame and cause it to scatter laterally, as it would were the iron out off at right angles, as shown in Fig. l.

The object of causing the delivery-tube D to dip into a well, 0, is to prevent its end from becoming uncovered with gasoline when it becomes necessary in soldering to hold the device in a vertical position with the tool uppermost.

The well furnishes a supply of hydrocarbon amply sufficient to supply the burner pending any operation of soldering in which it is necessary to hold the device in any given position, and immediately upon bringing the reservoir G to a horizontal position the well is refilled.

The air'chamber A furnishes a convenient handle for the device.

The machine, as a whole, meets a long felt It furnishes, combined in a handy and portable form, a fire-pot and soldering-iron,

raising or lowering the threaded tube D, by

raising or lowering the iron in its holder, and by screwing the rod E into or out of the projection d, admit of the nicest regulation of the temperature of the iron.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination, substantially as herein set forth, of the reservoir for compressed air, the reservoir for gasoline, and the swiveling blow-pipe or burner.

2. The combination, substantially as set forth, of the reservoirs for compressed air and fluid, the swiveling burner, and the solderingiron holder.

3. The combination, substantially as set forth, of the reservoirs for compressed air and fluid, the solderin g-iron holder, and the burner, vertically adjustable over the holder, whereby the temperature of the soldering-edge may be.

regulated, as described.

4. The combination, substantially as set forth, of the air and fluid reservoirs, the burner, and a soldering-iron holder adjustable to or from the burner, as and for the purpose described.

5. In combination with the jet-nozzle and perforated burner-tube, the casting or piece f adjacent thereto, and adapted, as described, to vaporize the liquid in transit to the burner.

6. In combination with the jet-nozzle and burner-tube and supporting-rod for the iron, a clamp or holder adapted to maintain the iron in a line with the axis of the burner-tube, as set forth.

JOHN S. HULL.

Witnesses:

R. D. WILLIAMS, CHAS. E. HULL. 

